Henry lindahl



(No Model.)

` H. LINDAHL.

CLAMP POB BLEGTRIG GONDUCTORS. No. 487,332. Patented Deo. 6, 1892.

mipesesr fmvezz'or l v Y def/W I @may UNTTED STATES PATENT OEEICE1 VHENRY LINDAIIL, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO .llOI-IN S. GUSTIN, OF SAME PLACE.

CLAMP FOR ELECTRIC CONDUCTORS.

SPECIFICATION forming part of Letters Iatent No. 487,332, dated December 6, 1892. Application filed February 5, 1892. Serial No. 420,417. (No model.)

T0 a/ZZ whom t may con/cern:

Be it known that I, HENRY LINDAHL, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Wire Clamp or Holder, of which the following' is a specification.

My invention relates to wire clamps or holders, and has for its object to provide a simple and convenient device for holding in position wires used for electrical or other purposes.

Figures l and 2 show the inner faces of the two engaging plates of which the device is composed. Fig. 3 is a cross-section of the device. Figs. 4 and 5 are cross-sections of modified forms. Figs. 6 and 7 are sections of the nut detached.

Like parts are indicated by the same letter throughout the several views.

A is a plate provided with the screwthreaded portion B, upon which is the nut C.

D is a plate, from the inner face of which projects the tongue or dog E, adapted to engage an opposed tongue or dog F, forming a part of the first-named plate. These tongues are set at angles other than right angles to their respective faces, so that when the plates are placed together, as shown in Fig. 3, and the nut C screwed down upon the screw-threaded portion B the nut will bear upon the projection H of the plate D and will prevent this plate from slipping with reference to the plate A, and thus permitting the tongues to escape from their engagement. Thus the plates are secured together. The inner surfaces of the ends I J of the plates are concave, so as to form a cylindrical receptacle for the wire. This receptacle might, of course, be of any convenient shape.

It will be seen from Fig. 3 that by varying the distance which the nut C is screwed downward the distance which the tongues E and F overlap will be varied and still the engagement be retained. By this means the size of the opening for the wire can be varied, and by inserting a wire of proper size and then screwing down the nut the jaws .I and I can be made to firmly clamp the wire. In case of a wire having a diameter less than that of the opening between the jaws the extremities of these jaws coming nearly together will keep the wire within the opening, and the device will then act as a wire-holder rather than as a clamp.

In Fig. 4: the screw-threaded portion is shown half upon each plate. The plates are secured together by the use of a nut, as in the form above described. In Fig. 5 the plates are secured together by the screw or rivet K in connection with the engaging tongues, as shown.

In Figs. 3 and 6 the nut is shown as provided with jaws L L for the forming of swivel connections, if desired. In Fig. 7 a nut having the upper part screw-threaded for making a rigid connection is shown.

It will be seen that the essential feature of my invention consists in the locking of the plates together by the engagement of the tongue or dogs, and that the nut or screw or rivet serves to prevent the plates from sliding with reference to each other, so as to free the tongues or dogs from engagement. Of course still other devices might be substituted for the nut C to accomplish the same result without departing from the spirit of my invention. I do not, therefore, wish to limit myself to the specific form shown.

What I do claim as my invention, and desire to secure by Letters Patent, is as follows:

l. A wire clamp or holder consisting of two plates secured together by the engagement of tongues or dogs, one upon each of said plates, and means for holding such tongues or dogs in engagement.

2. A wire clamp or holder consisting. of two plates secured together by the engagement of tongues or dogs, one upon each of said plates, and means for holding such tongues or dogs in engagement, said tongues or dogs being at angles other than right angles to the faces of their respective plates.

3. A wire clamp or holder consisting of two plates secured together by the engagement of tongues or dogs, one upon each of said plates, and means for holding such tongues or dogs adj ustably in engagement.

e. A wire clamp or holder consisting of two plates secured together by the engagement of tongues or dogs, one upon each of said plates, and means for holding such tongues orI dogs in engagement, said means consisting of a nut ICO screw-threaded upon a portion of one plate and bearing against the other plate.

5. A wire clamp or holder consisting of two plates having tongues adapted to engage each 5 other upon their respective faces and means for locking said plates together by holding the tongues in engagement.

6. A Wire clamp or holder consisting of two plates, the inner faces of which have opposed tongues or dogs adapted to engage each other, said plates secured together by a device and the engagement of the tongue, substantially as shown and described.

7. In a Wire-clamping device, two plates I5 having tongues or dogs upon their inner surfaces to engage each other, one of the plates being provided with a screw-threaded portion and a nut adapted to bear against the other plate, the tongues being at such angles to the surfaces of their respective plates that the distance which the tongues overlapwill be regulated by the position of the nut upon the screwthreaded portion, substantially as shown and described.

Signed this 30th day of January, 1892.

HENRY LINDAHL.

Witnesses:

FRANCIS M. IRELAND, Il. S'. GILMAN. 

